Top new questions this week:
|
|
The first HP Laserjet only had 128K of memory. To print an area of 7.5 by 10 inches at 300 DPI requires 844K if it's kept as a single bitmapped image. Obviously they were doing something clever to ...
|
|
It is a familiar fact that scientific software tends to do a lot of vector arithmetic and similar, that one does not want to keep rewriting the low-level code for such, so the usual practice is to use ...
|
|
The early Apple Macintosh computers (original Mac, Mac 512K, Mac Plus) all came with a "Programmer's Switch" installed on the side. I believe this persisted for a long time, with the switch ...
|
|
I'm used to the fact that first-generation computers were very expensive, which I had always assumed was because they contained large numbers of vacuum tubes, each of which is a rather complex, high ...
|
|
8086 is source code compatible with 8080. Zilog Z80 extended Intel 8080 with:
An enhanced instruction set including bit manipulation, block move, block I/O, and byte search instructions
New IX and IY ...
|
|
This is about the AS/400 which is an IBM mini-computer launched in 1988. It lives on today after several name changes and considerable hardware and software changes. It is still often informally ...
|
|
In an IBM service bureau in the early 1960’s all data was keyed twice. The first time the holes were punched into cards. The 2nd time a verifier checked that the correct holes had been punched. ...
|
Greatest hits from previous weeks:
|
|
I imagine it being a huge downgrade for some, not to have color on the Macintosh. Macintosh games were black and white in the beginning, while Apple II had color.
I'm especially interested in ...
|
|
When you think about it, punch cards are the safest way to backup data for long term storage.
They are not influenced by magnetic fields and their data (the holes) don't fade over time. They are also ...
|
|
I was playing Remedy Entertainment's video game Control the other day. Inside the game world, I've come across several computers. (They all look extremely similar.) To me, it looks like some kind of ...
|
|
I was playing Hypnospace Outlaw, a game about a retro-themed OS. This OS has a peculiar behavior that when loading a webpage, wiggling the mouse cursor will load the page faster.
That reminded me of ...
|
|
IBM released the IBM 5150 Technical Reference manual in August, 1981, and included in it the fully commented source code listing for the BIOS. I find this odd for two reasons:
IBM must have realized ...
|
|
I just saw this button in the Computer History Museum, and I'm wondering what is the context?
Context removed, "Is MS DOS a feminist?" is about the most non-sequitur thing I've seen.
|
|
Doom was ported to the Super Nintendo using a Super FX 2 chip on the cartridge. It has most of the features of the full game, though with a few omissions, such as absence of sound propagation, ...
|
Can you answer these questions?
|
|
I've been trying to find this out for ages. Having owned the Saturn version (which was the original release, BTW) when it was new, but also playing the PlayStation version at a cousin's house, I could'...
|
|
I am building a computer based on the 65C02, and when stepping through the code, I see strange things happening.
This is my code:
SEI
CLD
LDX #$ff
TXS
JSR someRoutine
...
This translates to this ...
|
